Well, in what I'm thinking is a miracle, I was able to get KVLY-DT OTA via a powered set-top indoor antenna (a Jensen TV931) here in Grand Forks. I'm really surprised. At first I received occasional drop-outs every 10 minutes or so, but after playing around with the positioning a few hours ago, I now get a perfect signal. I'm guessing that I'll eventually move to a roof-top antenna to get all of the eventual HD channels, I'm happy for now. (A side benefit is that I'm also getting PBS HD out of Crookston, MN).
I wrote to Charley Johnson at KVLY, first to thank him and the team there for getting their digital transmission up at the start of the new TV season, and also to ask about signal strength (in hopes that they were going to see up the power). That's less of a concern now that I get the signal perfectly, though. I also asked about hours of operation (as I couldn't get anything from them late last night), and also the status of KX4. His response (I hope he doesn't mind my posting it) is below. I figure that if I post it he'll get fewer e-mail messages.
All in all, I'm pretty pumped that I can get such a good signal in Grand Forks.
Jamie: We are at about 50% of our temporary power (where we'll be until
analog goes away), or about 180kw of effective radiated power. We're going
to stay at that for awhile, until we get a good handle on heat build-up and
some other issues. We're pretty pleased, so far... we've had a couple of
reports from people at least 75 miles from the transmitter who are getting
solid pictures with roof-top antennas. If you put an antenna outside I'm
pretty sure you'd eliminate the occasional drop-outs.
Our plan, for now, is to run the DT signal from 8:00 am until after Conan
O'Brien. There may be times during the day when we take the signal down for
maintenance, but we'll try to avoid the evening (HD) hours. The KXJB-DT
transmitter will be tested (with a factory rep on hand) sometime during
October, so we should be on the air with that by November 1st, barring any
technical issue that may arise. I suspect our power output and hours of
operations will be similar to what we're doing with KVLY.
Thanks for writing, and for watching!